CN104443868A - Composite type soft sealing method - Google Patents
Composite type soft sealing method Download PDFInfo
- Publication number
- CN104443868A CN104443868A CN201410613976.6A CN201410613976A CN104443868A CN 104443868 A CN104443868 A CN 104443868A CN 201410613976 A CN201410613976 A CN 201410613976A CN 104443868 A CN104443868 A CN 104443868A
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- CN
- China
- Prior art keywords
- rubber bag
- elastic foam
- topping
- floating plate
- type soft
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/34—Large containers having floating covers, e.g. floating roofs or blankets
- B65D88/42—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle
- B65D88/50—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle with resilient foam or stuffed seal
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention relates to a composite type soft sealing method which mainly solves the problem that the sealing effect is poor in the prior art. According to the composite type soft sealing method, a composite type soft sealing device is adopted to seal the space between a floating pan and a tank wall of a storage tank and comprises an elastic foam filling rubber bag, a liquid filling rubber bag, elastic foam and a fixing pressure board, the elastic foam filling rubber bag is arranged in the space between the tank wall and the floating pan of the storage tank, the face, making contact with the tank wall, of the elastic foam filling rubber bag is a zigzag surface, and the elastic foam filling rubber bag is filled with the liquid filling rubber bag and the elastic foam. The technical scheme that the space between the liquid filling rubber bag and the tank wall of the storage tank is at least filled with the elastic foam well solves the problem that the sealing effect is poor in the prior art, and the composite type soft sealing method can be used for sealing of floating roof storage tanks.
Description
Technical field
The present invention relates to a kind of combined type soft seal method.
Background technology
At present, sealing majority between External floating roof tank floating plate and tank skin adopts that elastic foam is filled with a sealing, mechanical seal or topping up seal, these sealing arrangements are in operation because affecting by factors such as tank skin out of roundness, weighting material deformation failures, being difficult to remains valid with tank skin seals, cause oil and gas leakage, become the important hidden danger of floating roof seal curtain blast accident.
CN201210431694.5 relates to a kind of compound sealing device being applied to internal floating roof tank, greatly can improve sealing effectiveness, the corrosion product of tank skin attachment can be removed again in time, thus greatly reduce the risk of the blast accident that the spontaneous combustion of tank Nei Fashengyin corrosion product causes.
A large amount of liquid has been filled in topping up sealing arrangement inside, is generally water, diesel oil etc., and this installation weight is very large, higher to the loading demands of floating plate, and once leak, often causes oil pollution.The elastic foam inside that is filled with a sealing is filled with three core foams, and this kind of isocyanurate foam elasticity is after standing repeatedly to extrude, and elasticity reduces greatly, can not ensure and the fitting tightly of tank skin, define oil and gas leakage space.Mechanically-sealing apparatus can ensure and the fitting tightly of tank skin, but its inside exists many places attachment hardware, lightning current spark phenomenon in seal ring easily occurs when being struck by lightning, causes seal ring to burn.
Elastic foam is filled with a sealing after being subject to tank skin extruding, and foamed elastic reduces greatly, and there is larger gap between tank skin; And topping up seals because sealing arrangement weight is larger, tank skin distortion or floating plate and tank skin spacing larger time, its sealing bag hanging portion weight is larger, to sealing bag, there is very large stretching action, easily cause sealing bag to rupture, in addition, be subject to the friction of tank skin weld seam, the partial rubber band contacted with tank skin easily leaks, and causes whole topping up seal failure.In addition, due to currently used sealing bag and tank skin area of contact limited, sealing bag easily and between tank skin forms gap.
Summary of the invention
Technical matters to be solved by this invention is the problem that in prior art, sealing effectiveness is poor, provides a kind of new combined type soft seal method.The method is used for, in the sealing of floating roof tank, having the good advantage of sealing effectiveness.
For solving the problem, the technical solution used in the present invention is as follows: a kind of combined type soft seal method, combined type soft sealer is adopted to seal between storage tank floating plate and tank skin, described combined type soft sealer comprises elastic foam filled rubber bag, topping up rubber bag, elastic foam and fixation clip, elastic foam filled rubber bag is positioned in the space between storage tank shell and floating plate, its one side contacted with tank skin is hackly surface, topping up rubber bag and elastic foam is filled in elastic foam filled rubber bag, elastic foam is at least filled in the space between topping up rubber bag and storage tank shell, topping up rubber bag is provided with implementation of port, elastic foam filled rubber pocket portions fixation clip near floating plate side is fixedly fitted on floating plate, elastic foam filled rubber bag upper opening is fixed by bolts in floating plate upper edge panel, bracket is provided with bottom floating plate, described elastic foam filled rubber bag is positioned on described bracket.
In technique scheme, preferably, described topping up rubber bag is strip, and from top to bottom through whole elastic foam filled rubber bag, the liquid level in topping up rubber bag is 60 ~ 70%.
In technique scheme, preferably, described elastic foam is filled in the space between topping up rubber bag and storage tank shell and between topping up rubber bag and floating plate.
In technique scheme, preferably, described elastic foam filled rubber bag height is consistent with floating plate top height, to ensure that the space between whole floating plate and tank skin filled by whole elastic foam filled rubber bag.
In technique scheme, preferably, described elastic foam is column type foam or single sheet foam, and the thickness of elastic foam calculates according to the design pitch of tank skin and floating plate.
In technique scheme, preferably, described elastic foam filled rubber bag adopts thickness to be the elastomeric material of 1 ~ 4mm, and topping up rubber bag adopts thickness to be the elastomeric material of 1 ~ 2mm.
In technique scheme, preferably, when elastic foam is installed, elastic foam material longitudinally single installation.
This patent adopts composite structure; elastic foam is filled with a sealing and topping up seal group be fitted together; play the advantage of these two kinds sealings; simultaneously; extend the length of rubber bag; to increase the area of contact of rubber bag and tank skin; soft seal effective sealing can be ensured; overcome the problem that the elastic failure of elastic foam and topping up sealing bag break; the elastic foam in outside plays a protective role to the topping up sealing bag in interlayer; the integral, flexible of soft seal is very low with the prolongation loss amount of time of run, achieves good technique effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of combined type soft sealer of the present invention.
In Fig. 1,1 is storage tank shell; 2 is floating plate; 3 is elastic foam filled rubber bag; 4 is bolt; 5 is fixation clip; 6 is bracket; 7 is topping up rubber bag; 8 is the serrated appearance face of elastic foam filled rubber bag; 9 is implementation of port; 10 is elastic foam.
Below by embodiment, the invention will be further elaborated, but be not limited only to the present embodiment.
Detailed description of the invention
[embodiment 1]
This patent employing combined type soft sealing structure, is filled with a sealing elastic foam and topping up seal group is fitted together, and plays the advantages of these two kinds sealings, meanwhile, extends the length of rubber bag, to increase the area of contact of rubber bag and tank skin.
As shown in Figure 1, this soft sealer is made up of three parts, i.e. elastic foam filled rubber bag, topping up rubber bag and elastic foam, also has the annexes such as the spout of rubber bag adapter plate, topping up rubber bag in addition.
Topping up rubber bag is placed in the midway location of whole device, both sides or one-sidedly arrange elastic foam.One of elastic foam filling is placed on the side of contiguous tank skin.When tank skin and floating plate gap less time, elastic foam can be installed in the space between topping up rubber bag and floating plate.
Elastic foam filled rubber bag adopts the elastomeric material of thickness 2mm, and meanwhile, the one side that this rubber bag contacts with tank skin adopts hackly surface, to cut off siphon liquid stream, also increases the leak tightness of sealing arrangement.The height of this rubber bag is consistent with floating plate top height, to ensure that whole rubber bag can fill the space between whole floating plate and tank skin.
Elastic foam weighting material can adopt column type foam or single sheet foam.The diameter of column type foam or the thickness of monolithic type cystosepiment calculate according to the design pitch of tank skin and floating plate.
Topping up rubber bag adopts strip, and it runs through whole rubber bag from bottom to top, by suitable with the packed height of elastic foam.Fill liquid and can adopt water or other low temperature resistant liquid.The thickness of topping up rubber bag adopts 1mm, to reduce the weight of whole soft seal.
Bolt hole is established on outermost elastic foam filled rubber bag top, and it is fixed on above floating plate edge.
When floating plate and tank skin pitch smaller, after topping up bag in interlayer is squeezed, inner liquid can from the compensatory flowing in trend both sides, and it is fixing for amassing because of the spatial overall between floating plate and tank skin, so the filling liquid and must flow to other parts of inside, and spilling can not be caused.Equally, when floating plate and tank skin spacing become large, the liquid of other parts can flow to this partial-compensation volume automatically.Even if the elasticity of elastic foam reduces after operation a period of time, interlayer internal-filling liquid bag can play compensating action, ensures the elasticity of whole sealing arrangement.
This combined type soft sealer is arranged on the space between floating plate and tank skin, is fixed on floating plate edge, establishes metal supporting plate bottom floating plate, and top sides listrium adopts bolt and sealing arrangement to fix.Establish metal fixing plate in sealing arrangement, soft seal is fitted tightly at floating plate boundary plank place, ensure the stability of soft seal in operational process.When mounted, first the inner side of elastic foam filled rubber bag is arranged on floating plate boundary plank upper limb, with metal sheet, elastic foam filled rubber bag is fitted in floating plate edge, elastic foam is filled between topping up elastic foam filled rubber bag and floating plate, until fill up whole space, then elastic foam is adopted to fill in the space between topping up rubber bag and tank skin, until fill up whole space, preferably to fluid injection in topping up rubber bag, filling weight is 60 ~ 70%, ensures that topping up bag top reserves a little clearance envelope.When elastic foam is installed, foamed materials longitudinally single installation.After filling, the opposite side interface of rubber bag is fixed on floating plate upper edge panel place.
After floating roof tank arranges sealing device, seal area increases 40 ~ 50%, sealing effectiveness comparatively existing apparatus improves 80 ~ 90%, namely in tank, oil gas can reduce by 99% by the volatile quantity of seal ring, the gas concentration once and between secondary sealer of seal ring can be controlled in less than 1%, essentially eliminates oil gas volatilization and gas explosion hidden danger.
Claims (7)
1. a combined type soft seal method, combined type soft sealer is adopted to seal between storage tank floating plate and tank skin, described combined type soft sealer comprises elastic foam filled rubber bag, topping up rubber bag, elastic foam and fixation clip, elastic foam filled rubber bag is positioned in the space between storage tank shell and floating plate, its one side contacted with tank skin is hackly surface, topping up rubber bag and elastic foam is filled in elastic foam filled rubber bag, elastic foam is at least filled in the space between topping up rubber bag and storage tank shell, topping up rubber bag is provided with implementation of port, elastic foam filled rubber pocket portions fixation clip near floating plate side is fixedly fitted on floating plate, elastic foam filled rubber bag upper opening is fixed by bolts in floating plate upper edge panel, bracket is provided with bottom floating plate, described elastic foam filled rubber bag is positioned on described bracket.
2. combined type soft seal method according to claim 1, it is characterized in that described topping up rubber bag is strip, from top to bottom through whole elastic foam filled rubber bag, the liquid level in topping up rubber bag is 60 ~ 70%.
3. combined type soft seal method according to claim 1, is characterized in that in the space that described elastic foam is filled between topping up rubber bag and storage tank shell and between topping up rubber bag and floating plate.
4. combined type soft seal method according to claim 1, is characterized in that described elastic foam filled rubber bag height is consistent with floating plate top height, to ensure that the space between whole floating plate and tank skin filled by whole elastic foam filled rubber bag.
5. combined type soft seal method according to claim 1, it is characterized in that described elastic foam is column type foam or single sheet foam, the thickness of elastic foam calculates according to the design pitch of tank skin and floating plate.
6. combined type soft seal method according to claim 1, it is characterized in that described elastic foam filled rubber bag adopts thickness to be the elastomeric material of 1 ~ 4mm, topping up rubber bag adopts thickness to be the elastomeric material of 1 ~ 2mm.
7. combined type soft seal method according to claim 1, when it is characterized in that elastic foam is installed, elastic foam material longitudinally single installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410613976.6A CN104443868B (en) | 2014-11-04 | 2014-11-04 | Combined type soft seal method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410613976.6A CN104443868B (en) | 2014-11-04 | 2014-11-04 | Combined type soft seal method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104443868A true CN104443868A (en) | 2015-03-25 |
| CN104443868B CN104443868B (en) | 2017-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410613976.6A Active CN104443868B (en) | 2014-11-04 | 2014-11-04 | Combined type soft seal method |
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| Country | Link |
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| CN (1) | CN104443868B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600185A (en) * | 2015-10-21 | 2016-05-25 | 中国石油化工股份有限公司 | Magnetic flexible sealing device and mounting method thereof |
| CN107636400A (en) * | 2015-05-21 | 2018-01-26 | 巴斯夫欧洲公司 | Container for storing liquid and application thereof |
| CN108016762A (en) * | 2016-10-31 | 2018-05-11 | 中国石油化工股份有限公司 | Floating roof tank spring-piece type foamed plastics once sealing device and its installation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB936446A (en) * | 1962-01-19 | 1963-09-11 | Chicago Bridge & Iron Co | Resilient seal for floating roof tank |
| JPS61273379A (en) * | 1985-05-29 | 1986-12-03 | ト−ヨ−カネツ株式会社 | Method of adjusting sealing of floating-roof type tank |
| JPS63281983A (en) * | 1987-05-15 | 1988-11-18 | Kashima Eng Kk | Sealing apparatus for floating roof type tank |
| CN202358534U (en) * | 2011-10-19 | 2012-08-01 | 中国石油化工股份有限公司 | Explosion suppression type floating plate sealing device for floating top storage tank |
-
2014
- 2014-11-04 CN CN201410613976.6A patent/CN104443868B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB936446A (en) * | 1962-01-19 | 1963-09-11 | Chicago Bridge & Iron Co | Resilient seal for floating roof tank |
| JPS61273379A (en) * | 1985-05-29 | 1986-12-03 | ト−ヨ−カネツ株式会社 | Method of adjusting sealing of floating-roof type tank |
| JPS63281983A (en) * | 1987-05-15 | 1988-11-18 | Kashima Eng Kk | Sealing apparatus for floating roof type tank |
| CN202358534U (en) * | 2011-10-19 | 2012-08-01 | 中国石油化工股份有限公司 | Explosion suppression type floating plate sealing device for floating top storage tank |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107636400A (en) * | 2015-05-21 | 2018-01-26 | 巴斯夫欧洲公司 | Container for storing liquid and application thereof |
| CN105600185A (en) * | 2015-10-21 | 2016-05-25 | 中国石油化工股份有限公司 | Magnetic flexible sealing device and mounting method thereof |
| CN105600185B (en) * | 2015-10-21 | 2018-11-23 | 中国石油化工股份有限公司 | A kind of magnetism soft sealer and its installation method |
| CN108016762A (en) * | 2016-10-31 | 2018-05-11 | 中国石油化工股份有限公司 | Floating roof tank spring-piece type foamed plastics once sealing device and its installation method |
| CN108016762B (en) * | 2016-10-31 | 2019-08-30 | 中国石油化工股份有限公司 | Floating roof tank spring-piece type foamed plastics once sealing device and its installation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104443868B (en) | 2017-09-29 |
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Address after: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Applicant after: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. Applicant after: Sinopec Corp. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Applicant before: Sinopec Corp. Applicant before: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. |
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